Cant buy the Pro version

Couldnt find in iTunes Apps Store the Pro version. I want to buy it directly from Apple store with my money credit that I have in my account.
How can I buy it without giving my credit card informations to Fugo, but directly from the Apps store.
If this is the way to buy integrated shopping, then this is not for me.
Please put the pro version in the app store.
Thank you

soukycan about Wordz +, v3.2.2